The mark of the curse is seen as 4 lines on the arm. In Japan and some Asian countries, the numerical digit 4 is considered an unlucky number and is associated with death (due to the words 4 and death sounding similar in their native languages). The fear of the number 4 is known as tetraphobia and is taken seriously in some Asian countries that sometimes the number 4 is avoided in homes, hospitals, businesses and other properties.